An illustrated guide to the fossil barnacles (Cirripedia) from the Crags (Plio-Pleistocene) of East Anglia

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• 作者：Joe S.H. Collins^a ; ^b ; Stephen K. Donovan^c ; ^{Steve.Donovan@naturalis.nl" class="auth_mail} ; Claire Mellish^a
• 关键词：Pedunculate barnacles ; Sessile barnacles ; Rogerella ; Stratigraphy
• 刊名：Proceedings of the Geologists' Association
• 出版年：March, 2014
• 年：2014
• 卷：125
• 期：2
• 页码：215-226
• 全文大小：9987 K

文摘

The Plio-Pleistocene Crag deposits of East Anglia include a wealth of shelly remains, including barnacles, preserved variously as complete shells, their disarticulated plates and trace fossils. Herein, we present a field guide to these distinctive fossils, with diagnoses of all known taxa recorded from the Crags of East Anglia, supported by both line drawings and photographs. The known stratigraphic and geographic distribution within the study area are tabulated. Recognised species include the sessile barnacles Armatobalanus bisulcatus (Darwin), A. dolossus (Darwin), Balanus balanus (Linn茅), B. crenatus Brugui猫re, B. inclusus Darwin, Concavus concavus (Bronn), Chirona hameri (Ascanius), Megabalanus tintinnabulum (Linn茅), Conopea calceola (Ellis), Co. spongicola (Brown), Acasta undulata Darwin, Coronula barbara Darwin, Megatrema anglicum (G.B. Sowerby) and Verruca stroemia (M眉ller) (=14 species); two pedunculate forms, Scalpellum magnum Darwin and Lepas delicatula Withers; and the boring Rogerella isp. The greatest diversity of species is found in the Coralline Crag and Red Crag formations, both yielding 11 species, although only four are common to both. Barnacles are poorly represented in other Crag deposits.